Date: Thu, 30 Oct 2003 12:48:32 -0500 (EST) From: Garrett Wollman <wollman@khavrinen.lcs.mit.edu> To: Barney Wolff <barney@databus.com> Cc: current@freebsd.org Subject: Re: jumbograms (& em) & nfs a no go Message-ID: <200310301748.h9UHmWUS023654@khavrinen.lcs.mit.edu> In-Reply-To: <20031030173415.GA83460@pit.databus.com> References: <20031029183808.M99053@prg.traveller.cz> <200310300804.58296.sam@errno.com> <20031030173415.GA83460@pit.databus.com>
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<<On Thu, 30 Oct 2003 12:34:15 -0500, Barney Wolff <barney@databus.com> said: > Just a minor note: GigE should not require a crossover cable. It's > supposed to work to connect two GigE adapters with a straight-thru > cable. I verified this with two Intel em NICs, quite a while ago. This should hardly be surprising, since 1000BASE-TX transmits and receives bidirectionally on all four pairs simultaneously. > As I recall, when I used a crossover cable, I could not get the > adapters to go to 1000, only 100. That might have been the cable, > or not. That's at least conceivable; I don't know enough about the wire protocol to tell whether that's supposed to happen or not. -GAWollman
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